Printed paper web



J DUCKSTINE PRINTED PAPER WEB Dec. 21 1926. 1,611,729

Filed Nov. 5, 1920 Patented Dec. 21, 1926.

UNITED STATES JULIUS DUCKSTINE, OF NEW YORK, N. Y.,

COMPANY, OF NEW YORK, N. Y.,

ASSSIGNOR TO UNDERWOOID TYPEVJ'RITER A CORPORATION OF DELAWARE.

PRINTED PAPER \V'EB.

Application filed November 5, 1920.

This invention relates to continuous Webs having a succession of printedforms thereon to be used, with interposed carbons, on a typeWi-itingmachine having a revoluble cylindrical platen and teed-rolls foradvancing the Webs; and an object 01 the invention is to overcome theill effects of the creep ot the outer ply or plies upon the inner ply orplies which takes place during line-spacing operations.

Other features and advantages will hereinafter appear.

The invention is illustrated in the acco1npanying drawings, in which 1represents the inner web and 2, 3 and at the successive plies which lieupon the inner ply and form a composite Web. For the purpose ofoverco1ning the ill el'l'ects ot the creep of the plies relatively toone another, the distance be tween the line-spaces 5 on the forms of thesuccessive plies, the terms being indicated liagranunatically bytransverse lines (3, is

made correspondingly dillerent from the line-space distance on the inneradjacent ply, this difference being equivalent to the amount of creep ofone ply relatively to another caused by the line-feeding operation. itfollows, therefore, that the length of the printed Web-forms upon anyouter Web will be diii'erent from that on the next inner Web by theamount of the creep produced for the distance cach tor-1n is ted.

it is preferable to employ plies and car hon-sheets of a standardthickness, so that the respective plies of Web will always lie the samedistance from the platen center and the same amount of creep producedwhen llts'll webs are used.

Serial No. 421,877.

The variation in the length of superposed forms is calculated inaccordance With the creep resulting from a fixed amount of linespacingmovement, the diameter of the platen, the extent to Which the individualplies are bent around the platen when in the machine, etc. If the properfixed amount of line-spacing is eti'ected in connection with each set ofsuperposed forms, the creep Will be substantially that estimated, andafter typing one set the next set Will be properly positioned to starttyping. Suitably printed webs may be used in typewriting machines eitherof the usual or of the tan-fold type.

Variations may be resorted to within the scope of the invention, andportions of the .iuq'n-ovenients may he used without others.

lilaving thus described my invention, I claim:

A set of separate continuous web-plies to be ted in superposed relationaround the cylindrical platen of a typewriting machine, said plies to betyped upon sin'iultaneously, each of said plies having a succession ofprinted forms upon it, the forms on each ply being of the same length,but differing in length from the forms on all of the other plies, thelengths of the forms on the ditl'erent plies being proportional to thedistances from the center of the platen at Which the respective pliesare to be fed around the platen, the arrangement being such that theexcess feeding of the outside plies, instead of causing the successionof forms to creep out 0t register, causes the forms to creepsuccessively into register for writing.

JULIUS DUGKSTINE.

